From 610e2df5f5397bf993c0173e067fc6b1b55059ca Mon Sep 17 00:00:00 2001
From: Celestino Amoroso <celestino.amoroso@gmail.com>
Date: Thu, 30 Apr 2026 07:06:20 +0200
Subject: [PATCH] operator-dot: added support to access dict value by
 exprssion; example: D.key, D."key", D.expr

---
 operator-dot.go | 11 +++++++++++
 t_dict_test.go  |  3 +++
 2 files changed, 14 insertions(+)

diff --git a/operator-dot.go b/operator-dot.go
index 2d99755..bcbf1ac 100644
--- a/operator-dot.go
+++ b/operator-dot.go
@@ -44,6 +44,17 @@ func evalDot(ctx kern.ExprContext, opTerm *term) (v any, err error) {
 		} else {
 			err = indexTerm.tk.ErrorExpectedGot("identifier")
 		}
+	case *kern.DictType:
+		s := opTerm.children[1].symbol()
+		if s == SymVariable || s == SymString {
+			src := opTerm.children[1].Source()
+			if len(src) > 1 && src[0] == '"' && src[len(src)-1] == '"' {
+				src = src[1 : len(src)-1]
+			}
+			v, err = unboxedValue.GetItem(src)
+		} else if rightValue, err = opTerm.children[1].Compute(ctx); err == nil {
+			v, err = unboxedValue.GetItem(rightValue)
+		}
 	default:
 		if rightValue, err = opTerm.children[1].Compute(ctx); err == nil {
 			err = opTerm.errIncompatibleTypes(leftValue, rightValue)
diff --git a/t_dict_test.go b/t_dict_test.go
index 1e58bdc..ce764de 100644
--- a/t_dict_test.go
+++ b/t_dict_test.go
@@ -39,6 +39,9 @@ func TestDictParser(t *testing.T) {
 			//"b":2,
 			"c":3
 			}`, map[any]any{"a": 1, "c": 3}, nil},
+		/* 13 */ {`D={"a":1, "b":2}; D."a"`, int64(1), nil},
+		/* 14 */ {`D={"a":1, "b":2}; D.a`, int64(1), nil},
+		/* 15 */ {`D={1:"a", 2:"b", 3:"c"}; D.(1+2)`, "c", nil},
 	}
 
 	succeeded := 0